Unawatuna beach in sri lanka

Unawatuna is rich in its biodiversity. Its greatest potential attraction for eco-tourism was the marsh land or mangrove, Kadolana, which was partially dredged and filled to develop a hotel for a German hotel chain. The development never eventuated. Many locals believe it to have been cursed for being built at the doorstep of the Wella Devalaya.

Over sixty species of endemic birds, including terns, egrets, herons, sandpipers and kingfishers, as well as rarer species such as the lesser whistling duck, the Asian palm swift, the white-breasted waterhen, the Loten's sunbird and the black bittern have been sighted in the locality by the ornithologist, Clive Byers. These birds are mostly sighted in the remaining marshy area and Rumassala Hillock.

Off the coast of Unawatuna, beneath the Indian Ocean lies a number of coral reefs, shipwrecks, and a great variety of fish and turtles. The turtles still wade onto the shore to lay their nests and eggs, and at times, as if to lay first claim to the sandy shore now invaded by the tourists and dotted by restaurateurs, even go right into the beach front restaurants .

The Rumassala coral reefs at the east end of the Galle Harbor attract divers, but are now endangered due to possible port development. Eco treks in the shrub jungles of Rumassala are also available.

The 2004 Indian Ocean tsunami swept away many beach front restaurants and has devastated the sandy beach to a great extent, marring the natural beauty of what was once claimed to be one of the twelve best beaches in the world. It is still considered to be one of the best 100 beaches of the world.

The Department of Coast Conservation was hard pressed to implement a coastal resources management plan under the Asian Development Bank plan, but did not spring into action on the aftermath of the tsunami. The Tourism authorities or Urban Development Authority have not yet taken action in regard to this issue.

Beginning on December 14, 2011, many illegal structures were cleared from the beachfront.

After defeating the Portuguese at the Fort of Negombo, the Dutch sailed south and landed on Unawatuna in 1640 and marched to Galle. The Portuguese had encountered the Dutch soldiers at Magalle (where Closenburg Hotel is now located), and fierce fighting took place there. Over 400 Dutch soldiers were killed, and only 49 Portuguese could manage to get back to their fortification in Galle, where they were held in siege for four days before they surrendered.

The Dutch built houses for their officials in Unawatuna. These constructions include the Nooit Gedacht hotel, Unawatuna Hospital and the mansion Maharambe. UBR hotel is situated on a land called Parangiyawatta, meaning "land of the Portuguese", and the area nearby is known as Ja-kotuwa, suggesting that it was the settlement of Ja or Javanese people better known as Hollanders and there may have been some fortification.

The Galle tower or Edwards Pillar in Rumassala Hill is believed to have been a fake lighthouse built during World War I, and the area is shown as property of the British Admiralty in old survey maps.